Abstract: A method of simulating codes that form a program configured to control a control target includes causing a processor to execute the following: first-setting a first process of executing a simulation of an operation of a code group excluding a specific code among the codes; second-setting a second process of executing a simulation of an operation of a specific model obtained by modeling the specific code; first-simulating, in the first process, a first simulation of a code preceding the specific code in the code group; second-simulating, in the second process, a second simulation of the specific model through use of an execution result of the first simulation by inter-process communication between the first process and the second process; and third-simulating, in the first process, a third simulation of a code succeeding the specific code through use of an execution result of the second simulation by the inter-process communication.

Abstract: A conversion apparatus includes a storage unit storing definition information in which position information and a type of the signal are associated with each other; a decoder referring to, when first reception data is input, the definition information of the first control target to determine a type of a first signal at a first position in the first reception data, and output first input data in which the determined type of the first signal and a value of the first signal in the first reception data are associated with each other; and an encoder referring to the definition information of a second control target to output second input data in which identification information of second computing units that corresponds to the type of the first signal, position information indicating a second position of the first signal, and a value of the first signal are associated with one another.

Abstract: A method of simulating codes that form a program configured to control a control target includes causing a processor to execute the following: first-setting a first process of executing a simulation of an operation of a code group excluding a specific code among the codes; second-setting a second process of executing a simulation of an operation of a specific model obtained by modeling the specific code; first-simulating, in the first process, a first simulation of a code preceding the specific code in the code group; second-simulating, in the second process, a second simulation of the specific model through use of an execution result of the first simulation by inter-process communication between the first process and the second process; and third-simulating, in the first process, a third simulation of a code succeeding the specific code through use of an execution result of the second simulation by the inter-process communication.

Abstract: A conversion apparatus includes a storage unit storing definition information in which position information and a type of the signal are associated with each other; a decoder referring to, when first reception data is input, the definition information of the first control target to determine a type of a first signal at a first position in the first reception data, and output first input data in which the determined type of the first signal and a value of the first signal in the first reception data are associated with each other; and an encoder referring to the definition information of a second control target to output second input data in which identification information of second computing units that corresponds to the type of the first signal, position information indicating a second position of the first signal, and a value of the first signal are associated with one another.